Even though I am well-supplied with go gear now, I still can't resist occasionally cruising Ebay and seeing what's out there. Here are a few very cool items for any of you with seriously deep pockets looking to blow some major cash on totally unnecessary Go-related stuff, or those of you who, like me, just like to see what's out there.
Japanese vase with Go players scene on it.
Two sets of old Chinese Go bowls
EDIT-- I removed the links since they were long over with.
Several months ago, I came across an auction for a handful of Go stones that were taken from an abandoned Japanese bunker during WWII. That was also pretty cool, but it's been over for some time and I can't find the completed listing.